marine invertebrates

Front

What is bilateral symmetry?

Back

A body plan in which the left and right sides of an organism are mirror images of each other, allowing for a distinct head and tail region.

Front

What is radial symmetry?

Back

A body plan in which body parts are arranged around a central axis, allowing for multiple lines of symmetry, as seen in organisms like jellyfish.

Front

What are invertebrates?

Back

Any animal that lacks a vertebral column, or backbone. This group includes organisms such as sponges, jellyfish, and insects.

Front

How do sponges obtain food?

Back

Sponges filter food from the water using their porous bodies, allowing water to flow through and trapping particles.

Front

What percentage of all living animal species are invertebrates?

Back

More than 90%.

Front

What is the main characteristic of a sea sponge?

Back

Sea sponges are simple, multicellular organisms that lack true tissues and organs, and they primarily filter feed.

Front

What is the function of pores in sponges?

Back

Pores allow water to enter the sponge, facilitating the filtration of food and oxygen.

Front

What is the difference between suspension feeders and filter feeders?

Back

Suspension feeders capture particles suspended in water, while filter feeders specifically filter out food particles from the water.

Front

Give an example of an organism with bilateral symmetry.

Back

Sea star (starfish) exhibits bilateral symmetry in its larval stage.

Front

What is the significance of having a hard outer shell in some marine invertebrates?

Back

A hard outer shell provides protection from predators and environmental hazards.